刚柔桩复合地基加固软基桩土应力对比试验研究  

Experimental Research on Pile-Soil Stress Comparison in Soft Soil Subgrade Consolidation with Composite Foundation of Rigid & Flexible Piles

作　　者：林文强 夏旭阳 陈延猛 

机构地区：[1]广东省航盛工程有限公司,广东广州511442

出　　处：《水运工程》2005年第7期37-41,共5页Port & Waterway Engineering

摘　　要：用刚柔桩复合地基加固软土路基是一种目前刚刚兴起的加固方式,在一定程度上借鉴了柔性桩复合地基加固软土路基的经验,但是加固特性与柔性桩复合地基又不尽相同。通过设置试验段进行试验,可以通过直接对比,指导设计和施工。本研究设置PHC管桩和水泥搅拌桩加固路基试验段,从桩土应力比的角度对刚柔桩进行了对比分析,得到了有益的设计施工指导意见。To strengthen soft soil subgrade with composite foundation of rigid ＆ flexible piles is a new way for subgrade strengthening developed recently. It has drawn on the experience of soft subgrade strengthening by flexible piled composite foundation, the strengthening characteristics of which is not completely the same as that of rigid-flexible piled foundation. By setting an experimental section to conduct experiment, a direct comparison can be made between them, to guide design and construction. The experiment was based on a section of subgrade strengthening with PHC pipe piles and cement mixing piles, in which a comparative analysis between rigid ＆ flexible piles was carried out from the angle of pile-soil stress ratio, and from which beneficial directive ideas on design and construction were obtained.

关 键 词：管桩 水泥搅拌桩 桩土应力比 监测 软土地基 

分 类 号：TU45[建筑科学—岩土工程]